WO1989003271A1 - Wire driving apparatus for wire electric discharge machines - Google Patents

Wire driving apparatus for wire electric discharge machines Download PDF

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Publication number
WO1989003271A1
WO1989003271A1 PCT/JP1988/001052 JP8801052W WO8903271A1 WO 1989003271 A1 WO1989003271 A1 WO 1989003271A1 JP 8801052 W JP8801052 W JP 8801052W WO 8903271 A1 WO8903271 A1 WO 8903271A1
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WO
WIPO (PCT)
Prior art keywords
wire
belt
rollers
roller
belts
Prior art date
Application number
PCT/JP1988/001052
Other languages
French (fr)
Japanese (ja)
Inventor
Toshiyuki Aso
Yasuo Arakawa
Original Assignee
Fanuc Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Ltd filed Critical Fanuc Ltd
Priority to DE8888908976T priority Critical patent/DE3873906T2/en
Publication of WO1989003271A1 publication Critical patent/WO1989003271A1/en
Priority to KR1019890701082A priority patent/KR890701270A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode

Definitions

  • the present invention relates to a wire drive device for a wire cutter discharge processing machine, and in particular, can perform wire connection smoothly by one drive source.
  • the present invention relates to a wire driving device capable of preventing abrasion of a rack and fluctuation of a wire feeding speed.
  • a conventional wire-cut electric discharge machine typically has a wire transfer system shown in Fig. 5 and a wire that is rotatably supported by a column 100.
  • the wire 1 wound around the reel 101 is transported by the wire ⁇ While being transported by the drive system, a discharge is generated between the wire 1 and the workpiece 106. Then, electrical discharge machining is performed.
  • Wire transport ⁇ The drive system consists of a brake device 102 composed of a brake cradle and a brake pinch roller, and a guide roller 103 And upper and lower guides 104 and 105 and upper and lower belt conveyors 108 and 107 for wire transport.
  • the lower belt section 107 consists of rollers " ⁇ " to "3" and a belt bridged between these rollers, and the upper belt section 08 is a roller. It consists of rollers r4 to r6 and a belt hung between the rollers, and the roller r6 is connected to the motor M2.
  • Wire transfer ⁇ The drive system is Furthermore, a wire guide ⁇ 12, a feed roller 109 connected to the motor Ml, and a pinch roller 11 1 pressed against the feed roller 109 are connected to the motor Ml. 0 and.
  • wire 1 is connected to the upper guide section ⁇ 04 to ⁇
  • the wire is fed by an automatic connection device (not shown) or manually to an initial hole (not shown) formed in the workpiece 106, and then the lower guide portion ⁇ 05 is passed from the initial hole. It is directed to the upper and lower belt sections 108 and 107 via the shaft passage, and is transported while being held between the belts of both belt sections that travel with the rotation of the motor M2. After passing through the gap guide 112, it is clamped between the feed roller 109 and the pinch rollers 110. After the wire connection is completed in this way, the feed roller 109 and the upper belt section ⁇ 08 are driven by the motors M 1 and M 2 to lower the wire.
  • This invention can perform wire connection smoothly even if only one drive source is used, and can prevent belt abrasion, fluctuation of wire feed speed, and generation of wire vibration. It is another object of the present invention to provide a wire drive device for a wire cutter discharge heater.
  • a wire drive device is provided with a wire connection operation position where each of the belts has a belt and both belts are pressed against each other.
  • a pair of wire-conveying belt portions that are relatively movable with respect to each other between the retracted positions where the birds are separated from the wire, and the pair of belt portions are connected to the wire connection position.
  • the wire drive device of the present invention transmits the rotational force of the wire transfer roller to the wire transfer belt during wire connection. Since the belt is driven periodically with the rotation of the rollers, even if only one drive source is used, the wire connection can be performed smoothly, and the wire can be connected. After connection, belt from roller The power transmission to the belt is cut off and the belt is retracted to a position where the belt is separated from the wire, so that the belt is worn, the wire feed speed fluctuates, and the wire is removed. Wire vibration during running can be prevented.
  • FIG. 1 is a partial side view showing a main part of a wire drive device according to an embodiment of the present invention, with a lower belt portion in a retracted position
  • FIG. 2 is a device shown in FIG. Fig. 3 is a partial side view showing the lower belt part in a wire connection operation position
  • Fig. 3 is a partial plan view showing the apparatus of Fig. 1 with the upper belt part removed
  • Figs. Fig. 4 is a partial schematic side view showing the power transmission mechanism between the wire drive roller and the lower belt part and its peripheral elements in Fig. 1
  • Fig. 5 is a wire mounted with a conventional wire drive device.
  • FIG. 6 is a schematic side view showing the power cutting machine
  • FIG. 6 is a partial plan view corresponding to FIG.
  • a wire cutting machine equipped with a wire drive device is basically basically the same as the group machine shown in FIG.
  • the columns 50 which correspond to the elements 100, 105, 107 to 110 in FIG. It is equipped with a lower guide part 6, upper and lower belt parts 2 and 3 for wire transfer, a wire drive roller 4 and a pinch roller 5, and the elements 101 to 1 or 1 shown in FIG. Elements not shown corresponding to 04 are provided.
  • a roller 51 having a V-groove for guiding the wire 1 and a flat roller 7 are supported by the rotating member 51 in a rotating manner.
  • upper and lower belt parts 2 and 3 are arranged downstream of the two rollers 7 and 8.
  • the upper belt section 2 includes rollers R1 to R10, a roller R23, and a roller R22 for belt tension adjustment, and a roller R2 between the rollers.
  • one end of each of the rollers R 1 to R 1 ⁇ , R 22 and R 23 is supported by the lower arm 51 so as to rotate independently.
  • the other ends of these rollers are supported by side plates 22 or members (not shown).
  • Lower belt portion 3 includes rollers R11 to R21 and R24 to R26 rotatably supported between side plates 32 and 32 ', respectively, and a link 3 to be described later. 3 and a roller R supported by the rotation itself and an endless belt 31 bridged between these rollers, and the rollers R11 to R20 are provided. Are arranged in alignment with the rollers R1 to R10 of the upper belt part 2, respectively. Further, the rollers R24 are urged to the upper belt part 2 side by means of a means not shown, for example, a spring, and the rollers disposed on both sides thereof.
  • a belt tension adjusting device 38 is formed together with R 25 and R 26.
  • the lower belt section 3 is connected to the lower arm 51 via a plurality of links so that the lower belt section 3 can approach and separate from the upper belt section 2 fixed to the lower arm 51. It is supported. That is, the wire introduction side of the side plate 3 2 ′ of the lower belt portion 3 has its inner end supported by the lower arm 51 via the shaft 33 a so as to be free to swing.
  • the link 33 is connected to the intermediate fulcrum of the link 33 via a shaft 33b. In other words, the wire introduction side of the lower belt section 3 is supported by the lower arm 51 via the link 33.
  • An intermediate portion between the side portions 32 and 32 'of the lower belt portion 3 is passed through a through hole (not shown) formed in the intermediate portion of the side plate with a gap therebetween.
  • the lower arm 51 is swingably supported by the lower arm 51 via a plurality of intermediate links L having one ends fixed to the foot S. Further, the upstream and downstream ends of the side plates 32, 32 'of the lower belt portion 3 are connected to shafts 35, 37 through which through holes formed in the relevant portions are respectively inserted.
  • the lower arm 51 is swingably supported by the lower arm 51 via links 34 and 36 to which the intermediate fulcrum and one end are fixed.
  • the inner end of the link 34 and the outer end of the link 36 are fixed to the lower arm 51, and the air rod and the cylinder rod of the cylinders 12 and 0 are fixed.
  • the roller driving roller 4 has a roller shaft which is drivingly connected to a motor M 1, and a gear 41 is provided on the roller shaft. Roller 4 and-are fixed so that they can rotate freely. Then, a gear 39 fixed to the roller shaft of the roller discharge side roller R 21 of the lower belt portion 3 so as to be rotatable integrally with the roller R 21 is connected to a wire drive.
  • the gear 4 of the roller 4 is freely meshed with the gear 4 (Figs. 3, 4 and 6), so that the roller 4 and the upper belt 2 can be operatively connected and disconnected. It is provided in.
  • I 5 I 5
  • the pinch roller 5 is urged toward the roller 4 by a spring 43, and one end of the pinch roller 5 is swingably supported by a column 1. Thus, at the other end of the member, it is supported in a state where it is rotating and pressed against the roller 4.
  • the wire drive roller 4, the pinch roller 5, the flat mouth roller 7, and the upper belt section 2 are such that the wire 1 is connected to the flat roller 7 and the wire drive roller.
  • the wire 1 is arranged so that it is slightly separated from the belt 21 of the upper belt part 2 when it is stretched between the rails 4. .
  • reference numeral 20 denotes an electron beam for supplying power to the wire 1
  • 19 denotes a wire derived from the lower guide portion 6.
  • Guide members for leading to the attached roller 8 and the flat roller 7 are shown
  • reference numeral 18 denotes a cover for covering the guide member 19, respectively, and reference numerals are used.
  • 14, 16 Guide for guiding the wire 1 carried out from the vertical belt sections 2, 3 between the wire drive roller 4 and the pinch roller 5. This is a guide member having pieces 15 and 7 respectively.
  • the air cylinder 101, the motor M1, and the conventionally known wire connection end detecting means 100 are controlled by a control means such as a numerical control of an electric discharge machine. 0 Each device is connected to 200. If necessary, a conventionally known automatic coupling device (not shown) is provided in the electric discharge machine.
  • the numerical controller 200 is a motor for driving rollers. Is rotated, and the air cylinders 10 and 12 are operated. When the air cylinders 1 and 12 operate, the piston rods 11 and 3 move back into the cylinder, and the links 34 and 36 center on the shafts 34a and 36a. Then, they rotate clockwise in Fig. 1. As a result, the lower belt section 3, which passes through the shafts 37, 3.5, which can be moved together with the links 36, 34, respectively, moves obliquely upward to the right from the retracted position shown in FIG. In other words, the robot moves toward the upper belt section 2 to the connection operation position shown in FIG. 2 while maintaining the parallel relationship between the opposing surfaces of the belts 2 1, 3 ⁇ of both belt sections. During the movement of the lower belt part 3, the plurality of links L and the link 33 on the most upstream side rotate clockwise.
  • the belts 21 and 31 of the upper and lower belts 2 and 3 are pressed against each other by the rollers R1 to R20 of both belt parts.
  • the belt 3 ⁇ has the flat roller 7 and the wire. Press into contact with each of the ear drive rollers 4.
  • the gear 3 '9 integral with the roller 21 is engaged with the gear 41 integral with the roller 4, and the rotation of the roller 4 driven by the motor M 1 causes the rotation of the gear 4.
  • the numerical controller 2 0 0 stops the operation of the air cylinders "10, 12".
  • the links 34, 36 rotate counterclockwise, and the lower belt section 3 2 Move diagonally from the wire connection operating position shown in Fig. Diagonally to the left to the retracted position shown in Fig. 1.
  • the belt 2 ⁇ of the upper belt part 2 is a wire extension line between the flat roller 7 and the wire drive roller 4.
  • the wire 1 does not come into contact with the belt 21 because it is arranged at a position where it does not touch the belt 21.
  • the belt 31 of the lower belt portion 3 also moves down to a position where it does not contact the wire 1, neither the belt 31 nor the wire 1 comes into contact.
  • the link 33 moves from the state shown in FIG. 2 to the state shown in FIG. 1 due to the downward movement of the lower belt part 3, the deflection of the belt 31 generated by the belt tension adjustment is performed. Since the belt 3 is absorbed by the device 38, the belt does not come into contact with the wire 1 due to the deflection of the belt 3. As a result, during electrical discharge machining after connection, the wire 1 is smoothly transported.
  • the belts 21 and 31 of the upper and lower belt portions are arranged so that the belt surface is substantially horizontal, but the belt surface is made vertical and the wire 1 is mounted on the belt. They may be transported sandwiched between birds.
  • guide members and rollers for guiding the wire 1 from the flat roller 7 to the belt portion 23 and from the belt portion to the wire drive roller 4 are provided as necessary.

Abstract

This invention provides a wire driving apparatus for a wire electric discharge machine, which is capable of carrying out a wire connecting operation smoothly with a single driving power source, and preventing the abrasion of a belt and variations in wire feeding speed. During a wire connecting operation, a lower belt portion (3), which is supported via links (33, 34, 36, L) so that it can freely swing, is moved toward an upper belt portion (2) by the operations of air cylinders (10, 12), so that belts (21, 31) of these two belts portions come into press contact with each other. Wires are transferred by these two belts which are moved by the rotational force, which is transmitted via gears, of a wire driving roller (4) and connected together. After the wire connecting operation has been completed, the lower belt portion is moved to a position in which it is spaced from the wires. During this time, the upper belt portion is also spaced from the wires, and the transmission of power from the wire driving roller to the lower belt portion is stopped.

Description

明 細 書  Specification
ワ イ ヤ カ ツ 卜 放電加 工機の ワ イ ヤ駆動装置 技 術 分 野  Wire drive device for wire cutter discharge machine
本発明 は 、 ワ イ ヤ カ ツ 卜 放電加 工機 の ワ イ ヤ駆動装置 に 関 し 、 特 に 、 ひ と つ の駆動源に よ り ワ イ ヤ結線を円滑 に 行え る. と共 に ベル 卜 の摩耗及び ワ イ ヤ送 り 速度の変動 を 防止可能な ワ イ ヤ駆動装置 に 関する 。  The present invention relates to a wire drive device for a wire cutter discharge processing machine, and in particular, can perform wire connection smoothly by one drive source. The present invention relates to a wire driving device capable of preventing abrasion of a rack and fluctuation of a wire feeding speed.
背 景 技 術  Background technology
従来の ワ イ ヤ カ ツ 卜 放電加工機は 、 典型的 に は第 5図 に示す ワ イ ヤ搬送 ♦ 駆動系を備え 、 コ ラ ム 1 0 0に よ り 回転自在 に 支持 し た ワ イ ヤ リ ール 1 0 1 に 巻回 さ れた ヮ ィ ャ 1 を こ の ワ イ ヤ搬送 ♦ 駆動系 に よ り 搬送 し つ つ 、 ヮ ィ ャ 1 と ワ ー ク 1 0 6間 に放電を生ぜ し め て 放電加工 を 行 う 。 ワ イ ヤ搬送 ♦ 駆動系 は 、 プ レ ー キ シ ュ 一 と ブ レ ー キ ピ ン チ ロ ー ラ と か ら 成るブ レ ー キ装置 1 0 2 と 、 ガ イ ド ロ ー ラ 1 0 3 と 、 上下ガ イ ド部 1 0 4 , 1 0 5 と 、 ヮ ィ ャ搬送用上下ベル 卜 部 1 0 8， 1 0 7 と を備える 。 下 ベル 卜 部 1 0 7 は ロ ー ラ 「 Ί 〜 「 3 と こ れ ら ロ ー ラ 間 に 架け ら れた ベル 卜 と よ り 成 り 、 ま た 、 上ベル 卜 部 Ί 0 8 は ロ ー ラ r 4〜 「 6 と 該 ロ ー ラ 間 に架け た ベル 卜 と よ り 成 り 、 ロ ー ラ 「 6はモ ー タ M 2 に連結 し て い る 。 ワ イ ヤ 搬送 ♦ 駆動系 は 、 さ ら に 、 ワ イ ヤ ガ イ ド Ί 1 2 と 、 モ ー タ M l に 連結 し た フ ィ ー ド ロ ー ラ 1 0 9 と 、 こ れ に 圧接 す る ピ ン チ ロ ー ラ 1 1 0 と を備え る 。  A conventional wire-cut electric discharge machine typically has a wire transfer system shown in Fig. 5 and a wire that is rotatably supported by a column 100. The wire 1 wound around the reel 101 is transported by the wire ♦ While being transported by the drive system, a discharge is generated between the wire 1 and the workpiece 106. Then, electrical discharge machining is performed. Wire transport ♦ The drive system consists of a brake device 102 composed of a brake cradle and a brake pinch roller, and a guide roller 103 And upper and lower guides 104 and 105 and upper and lower belt conveyors 108 and 107 for wire transport. The lower belt section 107 consists of rollers "Ί" to "3" and a belt bridged between these rollers, and the upper belt section 08 is a roller. It consists of rollers r4 to r6 and a belt hung between the rollers, and the roller r6 is connected to the motor M2. Wire transfer ♦ The drive system is Furthermore, a wire guide Ί12, a feed roller 109 connected to the motor Ml, and a pinch roller 11 1 pressed against the feed roller 109 are connected to the motor Ml. 0 and.
ワ イ ヤ結線時、 ワ イ ヤ 1 は 、 上 ガ イ ド部 Ί 0 4 か ら ヮ ー ク 1 0 6に形成 した図示 しないイ ニシ ャ ルホール等に 向けて自動結線装置 （ 図示略 ） 又は手動 に よ り 緞送され 次いで、 イ ニシ ャ ルホールか ら下ガイ ド部 Ί 0 5のワ イ ャ通路を介 し て上下ベル 卜部 1 0 8 , 1 0 7 に向け られ モー タ M 2の回転に伴っ て走行する両ベル 卜部のベル 卜 間に挾持された状態で撖送され、 ワ イ ヤガイ ド 1 1 2を 通っ てフ ィ ー ド ロ ーラ 1 0 9 と ピンチロ ーラ 1 Ί 0間に 挾持されるに至る。 このよ う に し て ワ イ ヤ結線が終了 し た後、 フ ィ ー ド ロ ーラ 1 0 9及び上ベル 卜部 Ί 08をモ ー タ M 1 , M 2 に よ り夫 駆動 して ロ ーラ 1 0 9 と ピン チロ ーラ 1 1 0間及び上下ベル 卜部 Ί 0 8 , 1 0 7のべ ル ト間 に挾持 した ワ イ ヤ 1 を镞送しつつ放電加工を行う 使用済みのワ イ ヤ はワ イ ヤ回収箱 1 1 1 内に廃棄される 上述のよ う に、 従来のワ イ ヤ激送 ♦ 駆動系に よれば、 放電加工中、 ワイ ヤ 1 は、 ロ ーラ 1 0 9 , 1 1 0 とベル 卜 部 1 0 8 , 1 0 7 と の双方に よ り駆動され、 しかも 、 ワ イ ヤ Ί を安定に搬送すべ く ロ ーラおよびベル 卜部に夫 々関連する モー タ M 1 ， M 2を周期回転させている。 ま た 、 各ベル 卜部のベル 卜 はその両端を結合 して無端状に され、 当該結合部に段差があ り 、 従 っ てベル 卜 は回転ム ラを生 じ易い 。 このため 、 フ ィ ー ドロ ーラ Ί 0 9が放電 加工中に所定速度で正確に駆動さ れて いる場合にもワ イ ャ送 り速度が変動 し易 く 、 放電加ェ特性に変動をきたす こ とがある。 ま た 、 放電加工中、 ワ イ ヤ とベル 卜 とが接 触状態に保持されるため、 ベル 卜が摩耗 し易 く 、 又、 ヮ ィ ャ が振動 す る 。 At the time of wire connection, wire 1 is connected to the upper guide section Ί 04 to ヮ The wire is fed by an automatic connection device (not shown) or manually to an initial hole (not shown) formed in the workpiece 106, and then the lower guide portion Ί05 is passed from the initial hole. It is directed to the upper and lower belt sections 108 and 107 via the shaft passage, and is transported while being held between the belts of both belt sections that travel with the rotation of the motor M2. After passing through the gap guide 112, it is clamped between the feed roller 109 and the pinch rollers 110. After the wire connection is completed in this way, the feed roller 109 and the upper belt section Ί08 are driven by the motors M 1 and M 2 to lower the wire. Used electric discharge machining while feeding wire 1 sandwiched between roller 109 and pinch rollers 110 and upper and lower belt parts 808 and 107. The wire is discarded in the wire collection box 1 1 1 As described above, the conventional wire is forcibly transported. ♦ According to the drive system, during the electric discharge machining, the wire 1 is placed in the roller 109 , 110 and the belt sections 108 and 107, and the motors M associated with the rollers and the belt section, respectively, in order to stably convey the wire. 1 and M 2 are rotated periodically. In addition, the belts of each belt portion are connected at both ends to form an endless shape, and there is a step in the connection portion, so that the belt is liable to generate rotational mura. For this reason, even when the feeder Ί09 is accurately driven at a predetermined speed during electric discharge machining, the wire feed speed is liable to fluctuate, and the discharge characteristics are fluctuated. Sometimes. Also, since the wire and the belt are kept in contact with each other during the electric discharge machining, the belt is liable to be worn. The vibrations occur.
発 明 の 開 示  Disclosure of the invention
本発明 は 、 ひ と つ の駆動 源の み を用 い て も ワ イ ヤ結線 を円 滑 に 行え かつ ベル 卜 の摩耗， ワ イ ヤ送 り 速度 の変動 及び ワ イ ヤ振動発生 を 防止 可 能な 、 ワ イ ヤ カ ツ 卜 放電加 ェ機の ワ イ ヤ駆動装置を提倂する こ と を 目 的 と す る 。  ADVANTAGE OF THE INVENTION This invention can perform wire connection smoothly even if only one drive source is used, and can prevent belt abrasion, fluctuation of wire feed speed, and generation of wire vibration. It is another object of the present invention to provide a wire drive device for a wire cutter discharge heater.
上述 の 目 的を達成す る た め 、 本発明 の ワ イ ヤ駆動装置 は 、 各 々 が べル 卜 有 し 、 両該ベル 卜 が互い に 圧接す る ワ イ ヤ結線動作位置 と 両該ベル 卜 が ワ イ ヤ か ら 夫々 離間 す る退避位置間で互い に 相対移動 自在で あ る一対の ワ イ ャ搬送用 ベル 卜 部 と 、 該一対の ベル 卜 部を前記 ワ イ ヤ結 線位置 と 前記退避位置間で相対移動さ せ る た め の手段 と 前記一対の ベル 卜 部の下流側 に 配 さ れ前記 ワ イ ヤ を挾持 し た 状態で該 ワ イ ヤ を搬送す る た め の一対の ロ ー ラ と 、 該一対の ロ ー ラ の少な く と も 一方 を 回転駆動 す る た め の 手段 と 、 ワ イ ヤ結線時 に 前記少な く と も - 方の ロ ー ラ の 回転 に 周期 し て 前記 ベル 卜 の少な く と も 一方が駆動 さ れ る よ う に 前記少な く と も一方の ロ ー ラ と 前記少な く と も 一方の ベル 卜 部 と を作動 的 に 連結 さ せ る と 共 に ワ イ ヤ結 線終了後 に 前記連結を解除さ せ る た め の手段 と を備え る 上述の よ う に 、 本発明 の ワ イ ヤ駆動装置 は 、 ワ イ ヤ 結 線時 に ワ イ ヤ搬送用 ロ ー ラ の 回転力 を ワ イ ヤ 搬送用 ベ ル に 伝達さ せ て 該ベル 卜 を ロ ー ラ 回転 に 周期 し て駆動 す る よ う に し た ので ひ と つ の駆動源の みを用 い て も ワ イ ヤ 結 線を 円 滑 に 行え 、 又 、 ワ イ ヤ 結線後 は ロ ー ラ か ら ベル 卜 への動力伝達を遮断させる と共にベル 卜 を該ベル 卜 がヮ ィ ャか ら離間する位置に退避させるよ う に し たのでベル 卜の摩耗及びワ イ ヤ送 り速度の変動な らびに ワ イ ヤ走行 中の ワ イ ヤ振動発生を防止できる。 In order to achieve the above-mentioned object, a wire drive device according to the present invention is provided with a wire connection operation position where each of the belts has a belt and both belts are pressed against each other. A pair of wire-conveying belt portions that are relatively movable with respect to each other between the retracted positions where the birds are separated from the wire, and the pair of belt portions are connected to the wire connection position. A pair of means for relatively moving the wire between the retracted positions and a pair of wires arranged downstream of the pair of belt portions for transporting the wire with the wire held therebetween; And a means for rotating at least one of the pair of rollers, and a cycle for rotating the at least one of the rollers at the time of wire connection. So that at least one of the belts is driven Means for operatively connecting one of the rollers and the at least one belt part and releasing the connection after the wire connection is completed; and As described above, the wire drive device of the present invention transmits the rotational force of the wire transfer roller to the wire transfer belt during wire connection. Since the belt is driven periodically with the rotation of the rollers, even if only one drive source is used, the wire connection can be performed smoothly, and the wire can be connected. After connection, belt from roller The power transmission to the belt is cut off and the belt is retracted to a position where the belt is separated from the wire, so that the belt is worn, the wire feed speed fluctuates, and the wire is removed. Wire vibration during running can be prevented.
図 面 の 簡 単 な 説 明  Brief explanation of drawings
第 1 図 は本発明の一実施例 に よる ワ イ ヤ駆動装置の要 部を、 下ベル 卜 部が退避位置を と つ た状態で示す部分側 面図、 第 2 図は第 1 図の装置を、 下ベル 卜 部がワイ ヤ結 線動作位置を と つ た状態で示す部分側面図、 第 3 図 は第 1 図の装置を上ベル 卜部を除去 し た状態で示す-部分平面 図 、 第 4 図は第 1 図のワ イ ヤ駆動 ロ ーラ と下ベル 卜部間 の動力伝達機構およびその周辺要素を示す部分概略側面 図、 第 5 図は従来の ワ イ ヤ駆動装置を搭載 した ワイ ヤ 力 ッ 卜拔電加工镲を示す概略側面図、 第 6 図 は第 4 図 に対 応する部分平面図である 。  FIG. 1 is a partial side view showing a main part of a wire drive device according to an embodiment of the present invention, with a lower belt portion in a retracted position, and FIG. 2 is a device shown in FIG. Fig. 3 is a partial side view showing the lower belt part in a wire connection operation position, Fig. 3 is a partial plan view showing the apparatus of Fig. 1 with the upper belt part removed, and Figs. Fig. 4 is a partial schematic side view showing the power transmission mechanism between the wire drive roller and the lower belt part and its peripheral elements in Fig. 1, and Fig. 5 is a wire mounted with a conventional wire drive device. FIG. 6 is a schematic side view showing the power cutting machine, and FIG. 6 is a partial plan view corresponding to FIG.
発明を実施するための最良の形態 本発明の一実施例のワ イ ヤ駆動装置を装備 したワ イ ヤ カ ツ 卜拔電加工機は、 第 5 図の族電加工機と基本的に は 略周様に構成され、 第 1 図ない し第 3 図に示すよ う に 、 第 5 図の要素 1 0 0 , 1 0 5 , 1 0 7〜 1 1 0 に夫々対 応する コ ラム 5 0 ， 下ガイ ド部 6 , ワイ ヤ搬送用の上下 ベル 卜 部 2 及び 3 , ワ イ ヤ駆動 ロ ーラ 4 な らびに ピンチ ロ ーラ 5 を備える と共に 、 第 5 図の要素 1 0 1 ない し 1 0 4 に対応する図示 し ない要素を備えて いる 。  BEST MODE FOR CARRYING OUT THE INVENTION A wire cutting machine equipped with a wire drive device according to one embodiment of the present invention is basically basically the same as the group machine shown in FIG. As shown in FIG. 1 or FIG. 3, as shown in FIG. 1 or FIG. 3, the columns 50,, which correspond to the elements 100, 105, 107 to 110 in FIG. It is equipped with a lower guide part 6, upper and lower belt parts 2 and 3 for wire transfer, a wire drive roller 4 and a pinch roller 5, and the elements 101 to 1 or 1 shown in FIG. Elements not shown corresponding to 04 are provided.
詳 し く は、 コ ラム 5 0 の一側か ら水平に延びる下ァー ム 5 1 に は ワ イ ヤ 1 をガ イ ド す る た めの V溝付 ロ ー ラ 8 と 平 ロ ー ラ 7 と が 回転自 在 に 支持さ れて い る 。 そ し て 、 両 ロ ー ラ 7 , 8の下流側 に は上下ベル 卜 部 2お よ び 3が 配 さ れて い る 。 上ベル 卜 部 2 は 、 ロ ー ラ R 1 〜 R 1 0お よ び ロ ー ラ R 2 3な ら び に ベル 卜 張力 調整用 ロ ー ラ R 2 2 と 、 こ れ ら ロ ー ラ 間 に架け ら れ た 無端ベル 卜 2 1 と を 備え 、 ロ ー ラ R 1 〜 R 1 〇 ， R 2 2及び R 2 3の一端は 下 ア ー ム 5 1 に よ り 夫々 回転自 在 に 支持さ れ 、 ま た 、 こ れ ら ロ ー ラ の他端 は側板 2 2 ま た は図示 し な い部材 に よ り 支持さ れて い る 。 下ベル 卜 部 3 は 、 側板 3 2 ， 3 2 ' 間 に夫々 回転自在 に 支持さ れた ロ ー ラ R 1 1 〜 R 2 1 , R 2 4〜 R 2 6 と 、 後述の リ ン ク 3 3 に よ り 回転自 在 に 支持さ れた ロ ー ラ R ひ と 、 こ れ ら ロ ー ラ 間 に架け ら れた 無端ベル 卜 3 1 と を備え 、 ロ ー ラ R 1 1 〜 R 2 0は上べ ル 卜 部 2の ロ ー ラ R 1 〜 R 1 0に 夫 々 整合 し て 配さ れて い る 。 ま た 、 ロ ー ラ R 2 4 は 、 図示 し な い 手段例 え ばス プ リ ングに よ り 反上ベル 卜 部 2側 に 付勢さ れ、 そ の両側 に 配 さ れた ロ ー ラ R 2 5 , R 2 6 と 共 に ベル 卜 張力調整 装置 3 8を構成 し て いる 。 For details, see the lower horizontal axis extending from one side of column 50. A roller 51 having a V-groove for guiding the wire 1 and a flat roller 7 are supported by the rotating member 51 in a rotating manner. Further, upper and lower belt parts 2 and 3 are arranged downstream of the two rollers 7 and 8. The upper belt section 2 includes rollers R1 to R10, a roller R23, and a roller R22 for belt tension adjustment, and a roller R2 between the rollers. And one end of each of the rollers R 1 to R 1 〇, R 22 and R 23 is supported by the lower arm 51 so as to rotate independently. The other ends of these rollers are supported by side plates 22 or members (not shown). Lower belt portion 3 includes rollers R11 to R21 and R24 to R26 rotatably supported between side plates 32 and 32 ', respectively, and a link 3 to be described later. 3 and a roller R supported by the rotation itself and an endless belt 31 bridged between these rollers, and the rollers R11 to R20 are provided. Are arranged in alignment with the rollers R1 to R10 of the upper belt part 2, respectively. Further, the rollers R24 are urged to the upper belt part 2 side by means of a means not shown, for example, a spring, and the rollers disposed on both sides thereof. A belt tension adjusting device 38 is formed together with R 25 and R 26.
下ベル 卜 部 3 は 、 下 ア ー ム 5 1 に 固定 し た 上ベル 卜 部 2 に対 し て接近離反自在な よ う に 複数の リ ン ク を介 し て 下 ア ー ム 5 1 に よ り 支持 さ れて い る 。 す なわ ち 、 下ベル 卜 部 3の側板 3 2 ' の ワ イ ヤ導入側 は 、 内方端が軸 3 3 aを介 し て 下 ア ー ム 5 1 に よ り 揺動 自 在 に 支持さ れた リ ン ク 3 3 の 中 間支点部 に軸 3 3 bを介 し て 連結さ れ、 換 言すれば、 下ベル 卜部 3のワ イ ヤ導入側 は リ ンク 3 3を 介 し て下アー ム 5 1 に よ り 支持されている 。 そ して 、 下 ベル 卜部 3の側扳 3 2 ， 3 2 ' の中間部は、 該側板中間 部に間陽をおいて穿設 し た貫通孔 （ 図示略 ） に夫々揷通 されたシ ャ フ 卜 Sに一端が固着された複数の中間 リ ンク Lを介 し て下アー ム 5 1 に よ り揺動自在に支持されてい る 。 さ ら に 、 下ベル 卜部 3の側板 3 2 , 3 2 ' の上流側 及び下流側端部は、 当該部位に穿設 し た貫通穴を夫々挿 通するシ ャ フ ト 3 5 , 3 7 に中間支点及び一端が固着さ れた リ ンク 3 4 , 3 6を介 して下ァー ム 5 1 に よ り 揺動 自在に夫々支持されている 。 そ して 、 リ ンク 3 4の内方 端および リ ンク 3 6の外方端は、 下ア ー ム 5 1 に固設 し. たエア、シ リ ンダ 1 2 , 0の ビス 卜 ン ロ ッ ド 1 3 ， 1 1 に軸 3 4 b , 3 6 bを介 し て夫々連結されている 。 The lower belt section 3 is connected to the lower arm 51 via a plurality of links so that the lower belt section 3 can approach and separate from the upper belt section 2 fixed to the lower arm 51. It is supported. That is, the wire introduction side of the side plate 3 2 ′ of the lower belt portion 3 has its inner end supported by the lower arm 51 via the shaft 33 a so as to be free to swing. The link 33 is connected to the intermediate fulcrum of the link 33 via a shaft 33b. In other words, the wire introduction side of the lower belt section 3 is supported by the lower arm 51 via the link 33. An intermediate portion between the side portions 32 and 32 'of the lower belt portion 3 is passed through a through hole (not shown) formed in the intermediate portion of the side plate with a gap therebetween. It is swingably supported by the lower arm 51 via a plurality of intermediate links L having one ends fixed to the foot S. Further, the upstream and downstream ends of the side plates 32, 32 'of the lower belt portion 3 are connected to shafts 35, 37 through which through holes formed in the relevant portions are respectively inserted. The lower arm 51 is swingably supported by the lower arm 51 via links 34 and 36 to which the intermediate fulcrum and one end are fixed. The inner end of the link 34 and the outer end of the link 36 are fixed to the lower arm 51, and the air rod and the cylinder rod of the cylinders 12 and 0 are fixed. Are connected to shafts 13 and 11 via shafts 34b and 36b, respectively.
上下ベル 卜部 2， 3の下流にはヮ ィ ャ駆動 ロ ーラ 4 と ピンチロ ー ラ 5 とが配され、 ロ ーラ 4はコ ラム 1 に よ り 回転自在に支持されている 。 このヮィ ャ駆動 ロ ー ラ 4は 第 4図に示すよ う に 、 モー タ M 1 に駆動的に連結された ロ ーラ軸を有 'し 、 該ロ ーラ軸 に は歯車 4 1 が ロ ーラ 4 と —体回転自在に固着されて いる。 そ し て 、 下ベル 卜部 3 の ワ イ ヤ排出側 ロ ーラ R 2 1 の ロ ー ラ軸に該ロ ーラ R 2 1 と一体回転自在 に固着 し た歯車 3 9が、 ワ イ ヤ駆動 口 ーラ 4の歯車 4 と嚙み合い自在に配され （ 第 3図 ， 第 4図及び第 6図 ） 、 ロ ーラ 4 と上べル 卜部 2 とを作動的 に連結可能かつ連結解除可能に設け ら れている。 そ して I 5 Downstream of the upper and lower belt sections 2 and 3, a roller driving roller 4 and a pinch roller 5 are arranged, and the roller 4 is rotatably supported by a column 1. As shown in FIG. 4, the roller driving roller 4 has a roller shaft which is drivingly connected to a motor M 1, and a gear 41 is provided on the roller shaft. Roller 4 and-are fixed so that they can rotate freely. Then, a gear 39 fixed to the roller shaft of the roller discharge side roller R 21 of the lower belt portion 3 so as to be rotatable integrally with the roller R 21 is connected to a wire drive. The gear 4 of the roller 4 is freely meshed with the gear 4 (Figs. 3, 4 and 6), so that the roller 4 and the upper belt 2 can be operatively connected and disconnected. It is provided in. And I 5
ピ ン チ ロ ー ラ 5 は 、 スプ リ ン グ 4 3 に よ り ロ ー ラ 4側 に 付勢 さ れかつ一端が コ ラ ム 1 に よ り 揺動自在 に 支持さ れ た 取付部材 4 2 に よ り 該部材の他端に お い て 回転自 在か つ ロ ー ラ 4に圧接 し た 状態で支持さ れて い る 。  The pinch roller 5 is urged toward the roller 4 by a spring 43, and one end of the pinch roller 5 is swingably supported by a column 1. Thus, at the other end of the member, it is supported in a state where it is rotating and pressed against the roller 4.
そ し て 、 ワ イ ヤ駆動 ロ ー ラ 4 , ピ ンチ ロ ー ラ 5 ， 平 口 ー ラ 7及び上ベル 卜 部 2 は 、 ワ イ ヤ 1 が平 ロ ー ラ 7 と ヮ ィ ャ駆動 ロ ー ラ 4間 に 張設さ れた と き 、 ワ イ ヤ 1 が上べ ル 卜 部 2の ベル 卜 2 1 か ら わず か に離間す る よ う な位置 関係 に 配設さ れて い る 。  The wire drive roller 4, the pinch roller 5, the flat mouth roller 7, and the upper belt section 2 are such that the wire 1 is connected to the flat roller 7 and the wire drive roller. The wire 1 is arranged so that it is slightly separated from the belt 21 of the upper belt part 2 when it is stretched between the rails 4. .
10 な お 、 図 中 、 参照符号 2 0は ワ イ ヤ 1 に電力 を供給す る た め の通電子を 、 1 9 は下ガ イ ド部 6か ら 導出 さ れた ワ イ ヤを V溝付 ロ ー ラ 8お よび平 ロ ー ラ 7へ導 く た め の ガ イ ド部材を 、 1 8 は該ガ イ ド部材 1 9部を覆う カ バ ー を夫々示 し 、 ま た 、 参照符号 1 4 , 1 6ほ上下ベル 卜 部 2 , 3か ら搬出さ れた ワ イ ヤ 1 を ワ イ ヤ駆動 ロ ー ラ 4 と ピ ン チ ロ ー ラ 5間へ導 く た め の ガ イ ド片 1 5 , 7 を夫 々 有するガイ ド部材であ る 。 そ し て 、 エ ア シ リ ン ダ 1 0 1 2 と 、 モ ー タ M 1 と 、 従来公知の ワ イ ヤ結線終 了検出 手段 1 0 0 と が 、 制御手段例 えば放電加工機の数値制御0 装置 2 0 0に夫々 接続 さ れて い る 。 ま た 、 必要 に 応 じ て 従来公知 の自動結鎵装置 （ 図示略 ） が放電加 工機 に装備 さ れる 。  10 In the figure, reference numeral 20 denotes an electron beam for supplying power to the wire 1, and 19 denotes a wire derived from the lower guide portion 6. Guide members for leading to the attached roller 8 and the flat roller 7 are shown, and reference numeral 18 denotes a cover for covering the guide member 19, respectively, and reference numerals are used. 14, 16 Guide for guiding the wire 1 carried out from the vertical belt sections 2, 3 between the wire drive roller 4 and the pinch roller 5. This is a guide member having pieces 15 and 7 respectively. The air cylinder 101, the motor M1, and the conventionally known wire connection end detecting means 100 are controlled by a control means such as a numerical control of an electric discharge machine. 0 Each device is connected to 200. If necessary, a conventionally known automatic coupling device (not shown) is provided in the electric discharge machine.
次 に 、 ワ イ ヤ カ ツ 卜 放電加 工機の ワ イ ヤ 駆動装置 の動 作を説明 す る 。  Next, the operation of the wire driving device of the wire cutter discharge machine will be described.
5 ま ず 、 数値制御装置 2 0 0は ロ ー ラ駆動用 モ ー タ Μ Ί を回転駆動する と共に 、 エ アシ リ ンダ 1 0， 1 2を作動 させる 。 エアシリ ンダ 1 〇 ， 1 2が作動する と 、 ピス ト ン ロ ッ ド 1 1 及び Ί 3がシ リ ンダ内に後退 し 、 リ ンク 3 4 , 3 6は軸 3 4 a , 3 6 aを中心に第 1 図中時計方向 に夫々回動する。 これに よ り 、 リ ンク 3 6 , 3 4 と夫々 一体移動自在のシ ャ フ 卜 3 7 , 3.5を揷通する下ベル 卜 部 3 は、 第 1 図に示す退避位置から図中右斜め上方に 、 すなわち 、 · 上ベル 卜部 2 に向けて第 2図に示す結線動作 位置まで、 両ベル 卜部のベル 卜 2 1 , 3 Ί の対向面の平 行関係を保持 し た状態で移動する。 この下ベル 卜部 3 の 移動中、 複数の中藺 リ ンク L及び最上流側の リ ンク 3 3 は時計方向に回動する。 5 First, the numerical controller 200 is a motor for driving rollers. Is rotated, and the air cylinders 10 and 12 are operated. When the air cylinders 1 and 12 operate, the piston rods 11 and 3 move back into the cylinder, and the links 34 and 36 center on the shafts 34a and 36a. Then, they rotate clockwise in Fig. 1. As a result, the lower belt section 3, which passes through the shafts 37, 3.5, which can be moved together with the links 36, 34, respectively, moves obliquely upward to the right from the retracted position shown in FIG. In other words, the robot moves toward the upper belt section 2 to the connection operation position shown in FIG. 2 while maintaining the parallel relationship between the opposing surfaces of the belts 2 1, 3 の of both belt sections. During the movement of the lower belt part 3, the plurality of links L and the link 33 on the most upstream side rotate clockwise.
下ベル 卜部 3が結線動作位置に達した とき、 上下ベル 卜 2 , 3のベル 卜 2 1 , 3 1 が両ベル 卜 部の ロ ーラ R 1 〜 R 2 0によ り互いに圧接され、 ま た、 リ ンク 3 3の先 端に取付けたワ イ ヤ導入側 ロ ー ラ R 0およびワイ ヤ排出 側 ロ ーラ R 2 1 の配設位置において ベル 卜 3 Ί が平ロ ー ラ 7及びワ イ ヤ駆動 ロ ー ラ 4の夫々 に圧接する 。 これ と 同時に 、 ロ ーラ 2 1 と一体の歯車 3 '9が ロ ーラ 4 と一体 の歯車 4 1 と嚙合い、 モー タ M 1 に よ り駆動される ロ ー ラ 4の回転が歯車 4 1 , 3 9を介 して ロ ー ラ R 2 1 に伝 達され、 従 っ て 、 ロ ー ラ R 0 , 1 0〜 2 1 ぉょび 1^ 2 4〜 R 2 6間 に架けたベル 卜 3 1 及びこれに圧接する ベル 卜 2 1 が、 ワ イ ヤ駆動 ロ ーラ 4の回転と周期 して走 行する 。 次 に 自動結線装置 （ 図示啗 》 又 は手動で 、 ワ イ ヤ供給 リ ールか ら 放電加 工部 を通 り 下ガ イ ド部 6に 導入 さ れ、 次いで該下ガ イ ド部 6か ら 導出 し て きた ワ イ ヤ Ί が 、 ガ イ ド部材 1 9及び V溝付 ロ ー ラ 8で ガ イ ド さ れて 平 ロ ー ラ 7 と ロ ー ラ R Oが ベル 卜 3 1 を介 し て 圧接す る位置に 達す る と 、 ワ イ ヤ 1 は平 ロ ー ラ 7 と ベル 卜 3 1 間 に 挟 ま れ、 走行するベル 卜 3 1 に よ る移動を開始する 。 更 に 、 ワ イ ヤ 1 ほベル 卜 3 Ί と 平 ロ ー ラ 間 に 、 次 に ベル 卜 2 1 3 Ί 間 に 挟 ま れて ベル 卜 2 Ί , 3 1 の走行 と 共 に 走行す る 。 そ し て 、 ワ イ ヤ 1 の先端 は 、 ロ ー ラ R 1 0 と R 2 0 間を通過後、 ガイ ド片 1 5 に ガイ ドさ れて ベル 卜 3 1 と ワ イ ヤ駆動 ロ ー ラ 4間 に挟 ま れ 、 さ ら に 、 ガ イ ド片 1 7 でガ イ ドさ れて ワ イ ヤ駆動 ロ ー ラ 4 と ピ ン チ ロ ー ラ 5間 に 挟 ま れる に 至る 。 When the lower belt part 3 reaches the connection operation position, the belts 21 and 31 of the upper and lower belts 2 and 3 are pressed against each other by the rollers R1 to R20 of both belt parts. In addition, at the position where the wire introduction roller R 0 and the wire discharge roller R 21 attached to the leading end of the link 33, the belt 3 が has the flat roller 7 and the wire. Press into contact with each of the ear drive rollers 4. At the same time, the gear 3 '9 integral with the roller 21 is engaged with the gear 41 integral with the roller 4, and the rotation of the roller 4 driven by the motor M 1 causes the rotation of the gear 4. 1, 39 to the roller R 21, and thus the bell bridged between the rollers R 0, 10-21 and 1 ^ 24-R 26 The belt 31 and the belt 21 pressed against it run in synchronization with the rotation of the wire drive roller 4. Next, it is introduced into the lower guide section 6 from the wire supply reel through the discharge processing section by an automatic wiring device (shown in the figure) or manually, and then the lower guide section 6 is removed. The wire which has been led out is guided by the guide member 19 and the V-grooved roller 8, and the flat roller 7 and the roller RO are passed through the belt 31. When the wire 1 reaches the pressure contact position, the wire 1 is sandwiched between the flat roller 7 and the belt 31 and starts moving by the running belt 31. First, between the belt 3 Ί and the flat roller, and then between the belts 2 3 13 す, travel along with the belts 2,, 31. After passing through the rollers R10 and R20, the tip of the wire 1 is guided by the guide pieces 15 and sandwiched between the belt 31 and the wire drive roller 4. In addition, It is guided by the guide piece 17 and is sandwiched between the wire drive roller 4 and the pinch roller 5.
ワ イ ヤ 1 が ワ イ ヤ駆動 ロ ー ラ 4 と ピ ン チ ロ ー ラ 5 に 挟 ま れた こ と を 、 ワ イ ヤ結線終了検出 手段 1 0 0が検出 す る と 、 数値制御装置 2 0 0はエ ア シ リ ン ダ " 1 0 , 1 2の 作動 を停止さ せ る 。 そ の結果 リ ン ク 3 4 , 3 6は反時計 方向 に 回動 し 、 下ベル 卜 部 3を第 2図 に 示す ワ イ ヤ結線 動作位置か ら 左斜め下 に 第 1 図の退避位置 ま で移動さ せ る α  When the wire connection end detecting means 100 detects that the wire 1 is sandwiched between the wire drive roller 4 and the pinch roller 5, the numerical controller 2 0 0 stops the operation of the air cylinders "10, 12". As a result, the links 34, 36 rotate counterclockwise, and the lower belt section 3 2 Move diagonally from the wire connection operating position shown in Fig. Diagonally to the left to the retracted position shown in Fig. 1.
下ベル 卜 部 3が退避位置 に至る と 、 ベル 卜 2 1 と 3 1 の密着が解かれ 、 ワ イ ヤ Ί は平 ロ ー ラ 7 と ワ イ ヤ駆動 口 ー ラ 4間 に 張設さ れる 。 上ペル 卜 部 2の ベ ル 卜 2 Ί は 、 平 ロ ー ラ 7 と ワ イ ヤ駆動 ロ ー ラ 4間 の ワ イ ヤ張設ラ イ ン と接しない位置に配設されているから 、 ワ イ ヤ 1 はベル 卜 2 1 に接触する こ と はない。 また 、 下ベル 卜部 3 のべ ル 卜 3 1 も ワ イ ヤ 1 と接触 しない位置まで下動するから ベル 卜 3 1 と ワイ ヤ 1 も接触する こ と はない 。 しかち、 下ベル 卜部 3 の下動に伴い、 リ ンク 3 3 が第 2 図の状態 から第 1 図の状態になっ た ときに生 じるベル 卜 3 1 のた わみはベル 卜張力調整装置 3 8 に よ り吸収されるため、 ベル 卜 3 のたわみに起因 し てベル 卜 がワ イ ヤ 1 と接触 する こ ともない。 この結果、 結線後の放電加工時、 ワイ ャ 1 は円滑に搬送される。 When the lower belt section 3 reaches the retracted position, the belts 21 and 31 are released from close contact, and the wire is stretched between the flat roller 7 and the wire drive port 4. . The belt 2 の of the upper belt part 2 is a wire extension line between the flat roller 7 and the wire drive roller 4. The wire 1 does not come into contact with the belt 21 because it is arranged at a position where it does not touch the belt 21. Further, since the belt 31 of the lower belt portion 3 also moves down to a position where it does not contact the wire 1, neither the belt 31 nor the wire 1 comes into contact. However, when the link 33 moves from the state shown in FIG. 2 to the state shown in FIG. 1 due to the downward movement of the lower belt part 3, the deflection of the belt 31 generated by the belt tension adjustment is performed. Since the belt 3 is absorbed by the device 38, the belt does not come into contact with the wire 1 due to the deflection of the belt 3. As a result, during electrical discharge machining after connection, the wire 1 is smoothly transported.
上記実施例では、 上下のベル 卜部のベル 卜 2 1 , 3 1 をベル 卜面が略水平になる よ う に配設し て いるが、 ベル 卜面を垂直に して ワ イ ヤ 1 をベル 卜で挟んで搬送するよ う に し ても よい。 この場合、 平ロ ーラ 7 か らベル 卜部 2 3 に 、 および、 ベル 卜部か ら ワイ ヤ駆動 ロ ーラ 4 に ワイ ャ 1 を導く た めのガイ ド部材や ロ ーラ等を必要に応じて 設ける 。  In the above embodiment, the belts 21 and 31 of the upper and lower belt portions are arranged so that the belt surface is substantially horizontal, but the belt surface is made vertical and the wire 1 is mounted on the belt. They may be transported sandwiched between birds. In this case, guide members and rollers for guiding the wire 1 from the flat roller 7 to the belt portion 23 and from the belt portion to the wire drive roller 4 are provided as necessary. To provide.

Claims

一 ！！ — 請 求 の 範 囲 One! ! - The scope of the claims
各々 が ベル 卜 を有 し 、 両該ベル 卜 が互い に 圧接す る ワ イ ヤ結線動作位置 と両該ベル 卜 が ワ イ ヤ か ら夫 々 離間 す る退避位置間で互い に 相対移動 自在で あ る —対の ワ イ ヤ搬送用 ベル 卜 部 と 、 該一対の ベル 卜 部 を前記 ワ イ ヤ結線位置 と 前記退避位置間で相対移動 さ せ る た め の手段 と 、 前記一対のベル 卜 部の下流側 に 配 さ れ前記 ワ イ ヤ を挾持 し た状態で 該ワ イ ヤ を搬 送す る た め の一対の ロ ー ラ と 、 該一対の ロ ー ラ の少 な く と 一方を回転駆動 す る た め の手段 と 、 ワ イ ヤ 結線時 に 前記少な く と も一方の ロ ー ラ の 回転 に同期 し て前記ベル 卜 の少な く と も一方が駆動 さ れる よ う に前記少な く と も一方の ロ ー ラ と 前記少な く と も - 方の ベル 卜 部 と を作動 的 に連結さ せ る と共 に ワ イ ヤ 結線終了後に 前記連結を解除さ せ る た め の手段 を備 え る 、 ワ イ ヤ カ ツ 卜 放電加 工機の ワ イ ヤ駆動装置 。  Each belt has a belt, and the belts are relatively movable relative to each other between a wire connection operation position where the belts are pressed against each other and a retracted position where the belts are respectively separated from the wires. Yes—a pair of belt belts for wire transfer, means for relatively moving the pair of belt sections between the wire connection position and the retracted position, and the pair of belts. A pair of rollers arranged downstream of the section for transporting the wire while holding the wire, and at least one of the pair of rollers. Means for rotationally driving the motor and at least one of the belts so that at least one of the belts is driven in synchronization with the rotation of the at least one roller during wire connection; Activate at least one roller and at least one belt part The connection Bei Ru example means order to Ru is released, Wa Lee Ya mosquito Tsu Bok discharge pressure KOKI Wa Lee Ya drive after connected so Ru When Wa Lee Ya connection ends co to.
前記一対の ベル 卜 部の一方 は移動不能 に 配設さ れ 他方の ベル 卜 部 は前記一方の ベル 卜 部 に 対 し て 接近 離反方向 に移動自 在 に 配さ れる請求の範囲第 1 項記 載の ワ イ ヤ カ ツ 卜 放電加 工機の ワ イ ヤ駆動装置 。  2. The device according to claim 1, wherein one of said pair of belt portions is immovably disposed, and the other belt portion is disposed independently of moving toward and away from said one belt portion. Wire drive device for the wire cutter discharge machine described above.
各前記ベル 卜 部 は前記ベル 卜 と し て の無端ベル 卜 が架け ら れる複数の ロ ー ラを有す る請求の範囲第 2 項記載の ワ イ ヤ カ ツ 卜 放電加 工機の ワ イ ヤ駆動装置 , 前記連結お よ び連結解除手段 は 、 前記回転駆動手 段 に よ り 駆動 さ れる 、 前記一対の ロ ー ラ の ひ と つ に これと一体回転自在に設けた第 "1 の歯車と 、 前記ひ とつ の ロ ーラ.に 隣接する 、 前記他方のベル 卜部の複 数の ロ ーラのひとつ に これと一体回転自在 に設け ら れかつ前記他方のベル 卜部が前記ワ イ ヤ結線動作位 置を と つ た と きに前記第 1 の歯車 と嚙合う第 2 の歯 車 と を備える請求の範囲第 3 項記載のワ イ ヤ カ ツ 卜 放電加工檬のワ イ ヤ駆動装置。3. The wire of a wire cutting discharge machine according to claim 2, wherein each belt portion has a plurality of rollers around which an endless belt serving as the belt is mounted. The drive unit and the connection and disconnection means are connected to one of the pair of rollers driven by the rotation drive means. A first gear provided so as to be rotatable integrally therewith, and one of a plurality of rollers of the other belt portion adjacent to the one roller so as to be rotatable integrally therewith; 4. The wire according to claim 3, further comprising: a second gear that is engaged with the first gear when the other belt portion is in the wire connection position. Wire drive for electric discharge machining.
. 前記'一対のベル 卜 部の上流側に配され前記ワ イ ヤ をガイ ドするためのガイ ド ロ ーラをさ ら に備え、 前 記一方のペル 卜部および前記退避位置にある前記他 方のベル 卜部の前記無端ベル 卜 の対向面は、 前記ガ ィ ド ロ ー ラ と前記一対の ロ ー ラ間に張設された ワイ ャか ら離閭 して配される請求の範囲第 3 項又は第 4 項記載の ワ イ ヤ カ ツ 卜 放電加工機のワイ ヤ駆動装置 A guide roller disposed upstream of the pair of belt portions for guiding the wire, wherein the one of the belt portions and the other portion at the retreat position are further provided. 4. The endless belt of claim 1, wherein a surface of the belt facing the endless belt is separated from a wire provided between the guide roller and the pair of rollers. Or the wire drive device for a wire cut electric discharge machine according to item 4.
6 . 両前記ベル 卜部の前記複数の ロ ーラの対応するち の同士が互い に整合 し て配され、 該対応する ロ ー ^ は両前記無端ベル 卜 を圧接する請求の範囲第 3 項又 は第 4 項記載の ワ イ ヤ カ ツ 卜放電加工機のワ イ ヤ駆 動装置。 6. The corresponding rollers of the plurality of rollers of both belt parts are arranged in alignment with each other, and the corresponding rollers press the both endless belts. Is a wire drive of the wire-cut electric discharge machine described in Item 4.
7 . 前記他方のベル 卜 部の前記複数の ロ ー ラのう ち 、 最上流側および最下流側に配された ロ ーラの少な く と も一方は、 前記他方のペル 卜部が前記ワ イ ヤ結線 動作位置を と つ た とき に前記ガイ ド ロ ー ラおよび前 記回転駆動手段に よ り 駆動さ れる 、 前記 - 対の ロ ー ラの一つ の対応するもの に前記他方のベル 卜部の無 。¾AV68OIO Z/Sー 7. Among the plurality of rollers of the other belt part, at least one of the rollers arranged on the most upstream side and the most downstream side is such that the other part is formed by the wire. And the other belt portion is driven by the guide roller and the rotary drive means when the wire connection operation position is taken, and corresponds to one of the pair of rollers. Nothing . ¾AV68OIO Z / S ー
镞丄/： y 2 η辗陧η ^上 ©^ Ϊί： y1· 跛 0 ¾锄 51 ^ > ¾g © i24酲ム Gt V ^〕へ . 镞 丄 /: y 2 η 辗 陧 η ^ top © ^ Ϊί: y1 · lame 0 ¾ 锄 51 ^> ¾g © i24 control Gt V ^].
0鹏  0 鹏
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H H
PCT/JP1988/001052 1987-10-15 1988-10-15 Wire driving apparatus for wire electric discharge machines WO1989003271A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8888908976T DE3873906T2 (en) 1987-10-15 1988-10-15 WIRE GUIDE IN A WIRE EDM MACHINING DEVICE.
KR1019890701082A KR890701270A (en) 1987-10-15 1989-06-15 Wire cutting device of wire cut electric discharge machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62258271A JPH01103230A (en) 1987-10-15 1987-10-15 Wire driving belt mechanism of wire cut electric discharge machine
JP62/258271 1987-10-15

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WO1989003271A1 true WO1989003271A1 (en) 1989-04-20

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US (1) US4929809A (en)
EP (1) EP0335986B1 (en)
JP (1) JPH01103230A (en)
KR (1) KR890701270A (en)
DE (1) DE3873906T2 (en)
WO (1) WO1989003271A1 (en)

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JPS6440222A (en) * 1987-08-07 1989-02-10 Fanuc Ltd Wire feed device
JPH0326421A (en) * 1989-06-24 1991-02-05 Amada Washino Co Ltd Wire cut electric discharge machine
US5444905A (en) * 1994-03-14 1995-08-29 Simmons Company Apparatus for manufacturing mattresses and box springs
DE19926885A1 (en) * 1999-06-12 2000-12-14 Atlantic Zeiser Gmbh & Co Transport device for information carriers, in particular cards
US6626283B2 (en) * 2001-03-05 2003-09-30 Lockheed Martin Corporation Pulley plunger assembly
US20030137101A1 (en) * 2002-01-31 2003-07-24 Lockheed Martin Corporation Automatically compliant/releaseable pinch roller mounting system
JP5199447B1 (en) * 2011-12-09 2013-05-15 ファナック株式会社 Wire electrical discharge machine with rotating shaft

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Also Published As

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JPH01103230A (en) 1989-04-20
DE3873906D1 (en) 1992-09-24
KR890701270A (en) 1989-12-19
EP0335986B1 (en) 1992-08-19
DE3873906T2 (en) 1993-01-14
EP0335986A1 (en) 1989-10-11
EP0335986A4 (en) 1989-10-27
US4929809A (en) 1990-05-29

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